Carat Hunter · Diamond retailer comparisons

Kay Jewelers vs Michael Trio

Side-by-side store comparison. Independent and non-promotional.

Data current as of October 29, 2026 · Updated daily. Zero affiliate revenue.

At a glance

	Kay Jewelers	Michael Trio
Founded	1916	2013
Headquarters	Akron, OH, United States	Singapore
Current listings	163,227	653,806
Origin mix	Lab + Natural	Lab + Natural
Cert labs accepted	AGS · EGL · GCAL · GIA · HRD · IGI	AGS · EGL · GCAL · GIA · HRD · IGI · R&F · SGS
Ships to	United States	Singapore · International
Return window	30 days	14 days
Terms checked	Not yet verified	Not yet verified

Current listings, origin mix and accepted labs are updated daily. Founded, headquarters and shipping come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer in the table. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.

What each store stocks

Inventory composition observed across each store's current listings.

Kay Jewelers

Origin mix

Lab-grown 45%Natural 55%

Most common shapes

Round 30%·Oval 14%·Emerald 11%·Cushion 10%

Michael Trio

Origin mix

Lab-grown 43%Natural 57%

Most common shapes

Round 45%·Oval 12%·Pear 10%·Emerald 9%

Stones stocked by both

We track 21,981 diamonds currently listed at both stores.

Most common overlap: Round, 0.75ct, natural, G VS2

Explore Round 0.75ct G VS2 cohort

Each matched stone has its own page where both retailers' prices appear next to the same physical diamond. That is where price comparison happens, on the stone, not on this page.

Pick by what you are looking for

Need shipping to United Kingdom? Only Michael Trio ships there.
Need GIA grading? Both stores carry it.
Need IGI grading? Both stores carry it.
Need HRD grading? Both stores carry it.
Michael Trio stocks more lab-grown. Kay Jewelers stocks more natural.

Looking for a specific spec?

Browse every retailer in our index, grouped by shape, carat, colour, and clarity. Thousands of spec pages.

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Questions we get

Does Carat Hunter earn commission from either store?

No. We earn zero affiliate revenue from any retailer in our index.

Why do you not show price comparisons on this page?

Pricing varies per stone, not per store. Click through to any matched diamond above and you'll see both retailers' prices on the exact same physical stone, which is the real comparison.

How fresh is this data?

Listings refresh as we re-read each retailer, most of them every day. Static facts refresh monthly.

How do I find a specific stone at both stores?

Use the GIA or IGI certificate number in our search.